export interface PlaceTextOption {
    keywords: string;
    types?: string;
    city?: string;
    citylimit?: boolean;
    children?: number;
    offset?: number;
    page?: number;
    building?: string;
    floor?: string;
    extensions?: 'base'|'all';
    sig?: string;
    output?: 'JSON' | 'XML';
    callback?: Function; 
}